Year-end Sale % OFF 
Abstract
A method was developed for the rapid and simple analysis of boric acid in agar and seaweed.Hard glass beakers and flasks were used to dissolve the samples in diluted sulfuric acid (0.1-1.8N) by boiling. The optimum boiling times were 3min for agar and 10min for seaweed. These sample solutions did not gel even if the temperature fell to below 20°C. The concentration of boric acid in the solution was immediately determined by the spectrophotometric curcumic method after extraction with 2-ethyl-1, 3-hexanediol in chloroform.A time of only 1.5 to 2.0 hours was required to analyze several samples simultaneously. The duplicate analysis showed good precision, and the relative standard deviation was 5.4-6.8% for boric acid at levels corresponding to 1, 000mg/kg in dry samples.The value obtained by the present method was about 20 to 25% higher than the value obtained by the official method based on titration.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi)
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
